Homokinetic cardan joint



Filed April 15, 1936 lwuyrms: I (Home Mom: m Joann ALBERT J0$KIN Pt'R: 7 w Arron/m Patented Oct. 5, 1937 g I a v UNITED STATES PATENT OFFICE HOMOKINETIC CARDAN JOINT Georges Monzee and Joseph Albert Joskin, Liege, Belgium Application April 15, 1936, Serial No. 74,466 In Belgium November 29, 1935 1 Claim. (Cl. 64-21,)

For transmitting rotary motion between two neutralizing the movements of both joints. The disalined shafts, which may be called main insert ring 88 of the outer joint is fixed at right shafts, meeting with each other in one point, angles with respect to the inner ring 89, by the use is now made of Cardan joints comprising, known ball-and-socket connections. The two 5 between the driving and the driven shafts, a deconnection axes of the outer and inner rings are 5 vice, for instance a spider, having four studs, thus symmetrical with respect to the connection this device comprising substantially two rotatsleeve 81. The housing 86 0f the double joint ing axes at right angles to one another and one is provided with a hollow extension having inner of which forms an integral part with the drivflutes for the engagement of the transmission ing shaft and the other with the driven shaft. shaft 91. The transverse connections in this 10 For the P p eSS, bot a eS ay b double joint are preferably arranged at right called auxiliary shafts. angles. These connections are formed by means When the two main shafts are out of alineof the blocks 9|, provided with the sockets for the ment, these joints (10 not transmit u o guballs 93. These blocks are held by the rings 92.

5 lar sp a s, th a u ar sp d f the d v ng The double joint is fixed to the differential by shaft is constant but that of the driven shaft a spherical member 83; provided with the neces- D during e C p rotetiol'hthreugh W sary packing 85 for preventing the escape of maxima and two minima which increase or delubricant. The reservoir 94 is supplied with grease rtespectively inhacgordance with the angulubricant through the aperture 95. b h ar posi ions of the s af s. The connecting sleeve 81, located etween bot 20 The invention as f its j t a m n t joints, is suspended in this case within the hous- Ce'rdan J'O t formed y a double joint a a ing, and this constitutes a particular feature of ment, that is a combined structure of two superthi double joint, It must be understood that, Posed Single joints. according to the applications, this sleeve 81 may The improved Card-en joint illustrated in axial be mounted upon a fixed seat or upon a movable 25 Section in the figure 0 e accompanying seat or in the shape of a knuckle for allowing ing p s the Carter 8! 0f the difierehtiel. intermediate movements with respect to the two the double thrust ball bearings 82 for the conical joints united by t l d thi depends Sleeve 87 0f the double J the Spherical mainly upon the particular applications and the member 83 for holding the joint upon the carter disalinement of th i h ft 30 of the differential, the bolts 84 for mounting the The device according to the invention presents joi t upon t e d erentia t e pack 85 the advantage to enable the assemblage of the venting ile cilia ofdlubiicant, the rgllinlrical parts by tt rings it t th use of bolts housing W1 ute 6X ension for e Tans or like mechanical means. The auxiliary axis mission Shaft, the Connecting Sleeve 87 of the formed with three elements comprising conical 35 doubleasjointi riggufntedhin ball beagih 82, h t and cylindrical sockets enclosing a ball secures rmgs an or 8 er ah lhher 30m a structure in which said balls remain completely i. g i g h g hm independent of the Various movements imparted en e 00 5 ormmg 6 alhmg soc t i the ball and socket connections; therefrom ets for the balls the pressure rings 92 for r sults that the ball is only submitted to the presing Said blocks the balls 93 mounted in their sure effort within the resistance of the sockets. respective sockets, the reservoir for the lubricant This Structure Secures a large emciency and the 94, the admission opening 95 for said lubricant, advantage is that the main elements f the and the lubrication cunduits joint are prevented from wear by friction; only AS illustratfad i joint foiamed by two the sockets are subjected to wear and they can up9rposed Smgle .Jomts used Wm} be replaced easily and at lowcost. All the ecting shaft of adifferential. The drlvlng shaft th t t 1 ts of the .Oint will last 90 is held in the diiferential by means of a fluted 0 er S i e .emen h J t b engagement The insert ring 39 is mounted by for an unllmlted time, because t ey are no su ball-and-socket connections 9| and 93, upon a hutted to Wearr Intermediate element form- 50 connection sleeve 81, mounted in the carter upon h? the cohhechoh between the supelfposed ball bearings, said sleeve being fixed or movable iolnts h m zg h hfi fi s (3 112 around the center of the double joint. This rehSmIBSlOn e Ween es a a connection sleeve 81 is integral with the two be the angular position between the two superjoints and constitutes the transmission means for posed joints, the intermediary element will be 55 a cylindrical housing at the end of the driving shaft, a driven shaft end engaging said housing, a set of three concentric annular insert members between the driving shaft end and the housing, and diametrically opposite ball-and-socket connections between the driving shaft end and the inner insert member and the inner and intermediate insert members and between the intermediate and outer insert members and the outer insert member and the housing.

GEORGES MONZEE. JOSEPH ALBERT JOSKIN. 

